Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tach - hanh tang luan ((nhung bai) or (dung cong)) manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tach - hanh tang luan ((nhung bai) OR (dung cong)) manh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - hanh tang luan ((nhung bai) or (dung cong)) manh toan cao*.